Double-acting well-pump.



T. PETERS.

DOUBLE ACTING WELL PUMP.

APPLICATION FILED MAY 26. 1911.

l 9392, 2 1 Q0 Patented Apr. 29, 1919.

@FTQE.

THEODORE PETERS, OF FERDINAND, INDIANA, ASSIGNOR TO THE PET-SON IEUMPCOMPANY, OF FERDINAND, INDIANA, A CORPORATION OF INDIANA.

DOUBLE-ACTING WELL-PUMP.

Specification of Letters Patent.

Patented Apr. 23 1919.

To all whom it may concern:

Be it known that I, THEODORE PETERS, a citizen of the. United States,residing at Ferdinand, Indiana, have invented a certain new and usefulImprovement in Double- Acting Well-Pumps, of which the following is afull, clear, and exact description, such as will enable others skilledin the art to which it appertains to make anduse the same.

This invention relates to pumps of the kind that are used for drawingwater from Wells.

The main object of my invention is to pro vide an efficient doubleacting pump of simple design that can be manufactured at a low cost.

Another object is to provide a double-acting pump that can be easilyinstalled and repaired by a person having only little mechanical skill.

And still another object of myinvention is to provide a double-actingwell pump in which the cylinders are arranged vertlcally, one above theother, and equipped with pistons, both of which are connected to thesame actuating member, thus producing a compact pump that can beinserted in a well of small diameter. Other objects and desirablefeatures of my invention will be here inafter pointed out.

Figure 1 of the drawings is a side elevational view, partly in verticalsection, of a double acting pump constructed in accordance with myinvention.

Figs. 2 and 3 are vertical sectional views, taken on the lines 2-2 and3-3, respectively, of Fig. 1.

Figs. 4 and 5 are horizontal sectlonal views, taken on the lines 4-4 and55, respectively, of Fig. 1; and

Figs. 6 and 7 are vertical sectlonal views,

taken on the lines 66 and 77, respectively, of Fig. 1.

Referring to the drawings which illustrate the preferred form of myinvention, m designates a well and A designates a water discharge pipethat projects downwardly into said well, said discharge pipe beingsupported by aplate 1 arranged at the mouth of the well, as shown inFig. 1. My improved pump consists of two opposed cylmders 2 and 3arranged vertically and sub- I merged in the water in the well, pistons2" and 3? reciprocatingly mounted in said cylinders and a substantiallyC-shaped actuating member B, to which both of said pistons areconnected. The cylinders 2 and 3 are arranged in vertical alinement, oneabove the other, and the pistons of said cylinders are connected to theshort arms or spaced portions 4 of the actuating member B, the part 4 ofsaid member that connects the arms or portions 4 together being arrangedat one side of the cylinders, as shown clearly in Fig. 1. The actuatingmember B is reciprocated longitudinally of the cylinders by means of apump rod or link 5 connected at its lower end to the upper end of themember B and having its upper end pivotally connected to a hand lever 6fulcrumed on a standard 7 mounted on the upper end of the waterdischarge pipe A. Said discharge pipe is provided with alaterallyprojecting branch 7 that leads to a discharge spout. The innerends of the cylinders 2 and 3 are formed by two castings 8 and 8*,respectively, that are secured together in any suitable manner, as, foreX- ample, by means of bolts 9, shown in Figs. 3 and 4, that passthrough laterally-projecting ears 10 on said castings, and the casting 8is provided with an internally screwthreaded portion 11 into which thelower end of the water discharge pipe A is screwed. The casting 8" towhich the bottom cylinder 3 is connected is provided with two chamhere12 and 13 that are separated from each other by means of a verticalpartition 14, the top walls of ,both of said chambers being formed by ahorizontally disposed partition plate 15 that is arranged between saidcastings 8 and 8. The partition plate 15 is provided with two ports 12and 13, shown in Fig. 3, that establish communication between thechambers 12 and 13, respectively, and a valve chamber 16 is formed inthe portion 11 of the casting 8 to which the discharge pipe A isconnected, said ports being controlled by a double flap valve that canbe formed conveniently from a piece of rubber, leather or other suitablematerial 17 that is connected intermediate its ends by screws 18 orother suitable fastening devices to the partition plate 15 and providedwith weights 12 and 13 that normally hold the two valve portions of themember 17 seated. The partition plate 15 is provided with an opening 12,shown in Figs. 2 and 4, that establishes communication between thecylinder 2 and the chamber 12 in the casting 8 and the bottom wall ofthe chamber 13 in said casting 8 is provided with a hole 13 thatestablishes communica tion between the chamber 13 and the cylinder 3.Each of the pistons 2 and 8 is provided with a flexible valve 19 thatcontrols inlet ports 20 in the piston, said valves 19 being so arrangedthat the valve on the piston 2 will open when said piston movesupwardly, and thus admit water to the cylinde-r 2, and the valve on thepiston 3 will open and admit water to the cylinder 3 when said piston 3moves downwardly.

lVhen the free end of the operating lever 6 is depressed the pistons inboth cylinders will move upwardly, thus causing the water in the.cylinder 3 to be forced into the chamber 13, and thence through the port13 in the top wall of said chamber into the discharge pipe A, the valve19 on the piston 2* being then open so that water can enter the cylinder2. When the free end of the operating lever 6 is raised the pistons inboth cylinders will move downwardly, and thus cause, the water in thecylinder 2 to be forced through the opening 12 in the partition plateinto the chamber 12, and thence through the port 12 in the top wall ofsaid chamber into the discharge pipe A, the valve 19. on the piston 3being then open so that water can enter the cylinder 3. It will thus beseen that on each upstroke and On each downstroke of the operating leverof the pump a charge of water will be forced upwardly through thedischarge pipe A, thereby causing the water to flow from said pipe inpractically a continuous stream, the double acting flap valve whichcontrols the discharge of water from the two chambers 12 and 13 beingso. constructed that the portion of same to, which the weight 12 isconnected will be seated when the water is being forced out of thecylinder 3, and the portion to which the weight 13 is connected will beseated when the water is being forced out of the cylinder 2.

The pump rod or link 5 that connects the piston actuating member B tothe operating lever 61 is preferably formed from a piece of pipe whoselower end is screwed into a casting 21 provided with a semi-sphericalshaped portion 22 that fits in a socket 23 formed in an ear 24: on theupper end of the member B, said casting 21 being clamped to said car bymeans of a bolt 25 or other suitable connecting device. By connectingsaid parts together in this manner it is possible to set the pistonactuating member 13 in such a position, during the operation ofinstalling the pump, that it will reciprocate in a straight line, eventhough the pump rod is arranged ata slight angle to a trulyperpendicular line. The upper end of the pump rod 5 can be connected tothe operating lever shown in Fig. 7. Each part of the clevis is providedwith a perforated car 28 that receives a transversely-disposed pin 29 inthe end of the operating lever 6, said pin being formed integral withthe lever 6 or permanently connected to same in any desired manner. Thestandard 7 on which the operating lever is mounted is, formed insubstantially the; same manner as the 018171526 above referred to, andcomprises two parts secured together and to the upper portion ofdischarge pipe A by bolts, 30 or other suitable fastening devices, eachpart of said standard being provided at its upper end with a hole forreceiving an integral fulcrum pin 31 on the lever 6.. A well pump of theconstruction above described canbe, easily installed and repaired by aperson possessed of only little mechanical skill, owing to the fact thatthe cylinders of the pump are held in operative position in the, well bymeans of the discharge pipe A, and the piston aetuating device. B isconnectedby means of an ordinary pipe and a, split clevis, to the.operating lever 6 of the pump, said clevis and the standard whichcarries the operating lever being so constructed that they can becombined with the parts with which they CO, operate by simply tighteningthe nuts on a.

few bolts. My improved pump can be man-iv ufacted at a low cost it is ofsuch simple design that it is not apt to get out. of order when in use,and another desirable feature of same is that it is compact and can: bearranged in a well of small diameter, this. of couse being due to the,factthat the cylinders are arranged in vertical alinement with eachother and the pistons of said cylinder are both connected to arelatively narrow or thin actuating device that reciprocates in avertical path between the cylinders and the side wall of the well.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is:

1. A double acting well pump, comprising two cylinders arranged. invertical alinement with each other, a structure arranged, between saidcylinders and composed of two members each of which is attached to, oneof the cylinders, a partition plate interposed between said members andclamped between same, two separated chambers in one of'said members, adischarge space in the other member, ports in said partition plate thatestablish communication between. said chambers and said discharge space,a double flap valve connected intermediate its ends to said partitionplate for controlling said ports, and means for establishingcommunication between each of said cylinders and one of said chambers.

2. A double acting Well pump, comprising two cylinders arranged invertical alinement with each other, a casting connected to the upper endof the bottom cylinder and provided with two chambers that are separatedfrom each other by a vertical partition, a port in said casting thatestablishes communication between the bottom cylinder and one of saidchambers, a second casting connected to the lower end of the topcylinder and provided with a discharge space, a partition plate arrangedbetween said castings and provided with a hole that establishescommunication between the top cylinder and the other chamber in thebottom casting, two openings in said partition plate that serve asdischarge ports for said chambers, and a double flap valve connected tothe top side of said partition plate at a point intermediate said ports.

THEODORE PETERS.

Copies of this patent maybe obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. 0.

